Title :
High accuracy camera calibration for 3-D computer vision
Author :
Nomura, Yoshihiko ; Sagara, Michihiro ; Naruse, Hiroshi ; Ide, Atsushi
Author_Institution :
NTT Corp., Ibaraki, Japan
Abstract :
A method for calibrating intrinsic TV camera parameters such as effective focal length, one-pixel length on the image plane, the image distortion center, and the distortion coefficient is presented. An ordinary two-dimensional model fitting is decomposed into two one-dimensional model fittings on the column and row of a frame buffer near the image distortion center by utilizing the point symmetry characteristic of picture distortion. Some parameters are also eliminated by setting up a calibration chart. Thus, the number of parameters to be fitted is drastically decreased, enabling fast and accurate calibration. Calibration accuracy is related to calibration conditions by computer simulation and is confirmed by experimentation
Keywords :
calibration; computer vision; television cameras; 3-D computer vision; computer simulation; distortion coefficient; effective focal length; frame buffer; image distortion center; image plane; intrinsic TV camera parameter calibration; one-pixel length; picture distortion; point symmetry characteristic; Calibration; Cameras; Computer vision; Geometrical optics; Lenses; Optical buffering; Optical distortion; Robotics and automation; Solid modeling; TV;
Conference_Titel :
Industrial Electronics Society, 1989. IECON '89., 15th Annual Conference of IEEE
Conference_Location :
Philadelphia, PA
DOI :
10.1109/IECON.1989.69680
